Combination letter-sheet and envelop.



J. D. TESSIER. COMBINATlON LETTER SHEET AND ENVELOP.

APPLlCATION men 001.12.1911. I

LQQQA'MB Patented Mar. 2?, 1917.

2 SH EETSSHEET 1.

muemto'b dr Z Wibmcooeo MM? A? 1. 11. 159511211. COMBINATION LETTER SHEET AND ENVELOP.-

ABPLTCATION FILED OCT. 12, 1911.

Patented Mar. 27, 1917.

2 SHEETS-:SHEET Z.

UNITED STATE PATENT JQDSEPH D.- TESSIER, F WORCESTER, MASSZlLCI-I(J'E E.TTS.

COMBINATION LETTER-SHEET AND ENVELOB.

'To all whom it mag-concern:

Be it known that; I, JosnrH D. Tnssmn, a citizen of the United States, residing at .lVorcester, in the county of Worcester, and

5 in the State of Massachusetts, have invented certain new and useful Improvements in a Combination Letter-Sheet and Envelop; and I do hereby declare thefollowing to be a full, clear, concise, and exact description of .10 the inventiomsuch as will enable others skilled in the art to which it appertains to make and use the same, reference being made to the accompanying drawing which forms a part of this specification. My invention relates to iu'iprovements in that class of combination letter sheets and envelops in which the letter sheet cooperates with the envelop to form a unit article. 1 l

The object of my improvement is to provide a simple and cheap device for maintaining the letter sheet and the envelop'in a folded unit. I

A further object is to provide a foldable or locking means to hold the envelop and the letter a manner as to prevent accidental or unauthorized opening thereof.

A further object is to furnish an article possessing certain advantages and details of construction over those heretofore con structed as will be apparent from the following description and as specified in the claims.

In th drawing,

Figure 1 is a plan view of the unfolded letter sheet and envelop,

Fig. 2 is a profile view of my device in a' stage of process of folding the same preparatory to locking the parts together,

Fig. 2 is a similar view to Fig. 2 showing a slightly modified form thereof,

Fig, 3 is a plan view showing the article completely folded, I

Fig. 4 is a plan view of a modification,

Fig. 5 is a section along the line.11 of Fig. 1 and s Fig. (3 is a similar section of the modified form shown in Fig. 2'.

Similar letters refer to similar parts throughout the several views. Referring first to Fig. 1 of the drawing my invention is made up principally of a letter sheet generally designated by the reference character L, an envelop portion C and a tab X. The envelop has the usual three tongues or flaps A, B, and B foldable respectively on the Specification of Letters Patent.

1 Application filed October 12, 1911.

sheet in a folded position in suchportion 09 of the tab, X.

Patented Mar. 2?, 191?. Serial No. 654,218.

lar in form and is made uplof the sections I), E, F, and Y produced by folding the sheet at the lines d, e, f, and 3/- extremity of the. letter sheet is shown at the line (Z, the sheet being integral with the en- The upper.-

velop sheet. To the inner side of the face section (I of the envelop, is partially glued or pasted a narrow strip or tab X, its length being substantially the same as the width of the letter sheet.

contact with the envelop section C while the remaining portion X remains free for an interlocking engagement with the strip Y at the lower end of the letter sheet when the whole is folded as will be more clearly seen from the disclosure below.

At the lower end of the letter sheet is a,

strip or tab Y, preferably an integral part of the letter sheet, and substantially of the same length as the tab X and of a width corresponding to the width of the unglued The tab Y has been shown slightly tapered at the ends at t and If for the purpose of facilitating its entering behind the free portion in of the tab X when folding the'device.

In Fig. 2 is shown the letter sheet and envelopin the process of folding, the letter sheet being folded on the line (Z then folded back on the line 6 and then folded up on the line f and finally the interlocking tab Y folded in on line 1 and the tab slipped in.

under the free portionrc" .of the tab X. The

flaps of the envelop sheet are then folded in and fixed in the usual manner.

Fig. 2 is a slight modification from the structure described above in connection with Figs. 1 and In this form I have made the letter sheet separate from the envelop sheet and also longer in that its upper extremity terminates in the free strip 00" at line a, that is, I have made the letter sheet Only a portion :21 of the .width of the strip X is glued or pasted in L, the strip X and a portion C integral.

This is more easily seen from a glance at Fig. 6. Beneath this letter sheet at such a place as is indicated at m I have attached a narrow area of-glue or paste whereby I may attach said letter sheet. to the envelop preparatory to folding it up and mailing sheet' is written upon.

manner.

Fig. 4: is another modification, wherein the letter sheet is made of a greater area than that shown in Fig. 1 by adding therdto rectangular wings W and VV' foldable 0n the lines (1", e", f,and.d, e, f, respectively. These wings may be made of lengths to suit the length of the letter sheet described in the foregoing part I of this specification, areas R and R inclosed by lines 1 1'" and u and a being further added to conform to the full length of the letter sheet shown in Fig. 2. The rest this form is in all respects the same as d f scribed above and the folding process and the interlocking of the strips Y and m are performed in exactly the same manner as described for the structure'shown in Fig. 1. 1 When folded the letteris sealed and to all appearances it is no different from any other ordinary letter. If however one desires ofliciously to tamper with the device or for any other reasons attempts to. see

Having thus described my invention,

what I cla-iinas new and desire to secure by Letters Patent is 1. In a device of the character described, the combination of a letter sheet, a gummed area on the back of the letter sheet, an envelop sheet attached to the letter sheet by the gummed area, a free end on the letter sheet beyond the gummed area and a free end on the othenside of the gummed area on the letter sheet.

2. In a combination letter sheet and en velop, an envelop sheet'with flaps, a letter sheet,, means for attaching the same together, means for foldably holding said letter sheet and envelop together as a unit,

comprising a plurality of overlapping memthe contents one cannot do so Without tearing it and thereby rendering oneself liable to detection, thus preventing one fromseeing the contents unnoticeablyr The above results and the advantages are all attained by virtue bf a very simply, cheap and easily made interlocking device.

bers and located between the envelop. and letter when in folded position. v

3. A combination letter sheet and envelop, a letter sheet,- an envelop sheet, a plurality of overlapping members, -one of said members being held adjacent to the envelop sheet, the, other, member being attached to the letter sheet, the first member occupying space provided between the sec ond member and a portion of the letter sheet, the second member occupying space provided between the first member and the envelop, flaps on said envelop for retainin the letter sheet and the members in folde position when sealed, thus preventing an opening of the device without tearing at least one of said members and thus .indieating an unauthorized opening of the article. JOSEPH D. TESSIER.

Witnesses:

JOHN H. Ran), EDWARD U. CHARBONNEAU. 

